Thanos Darkest Mission Showed How Cruel The Mad Titan Really is the ultimate Marvel villain, whose Infinity Gauntlet made famous in the comics that led to one of the most destructive acts in comic book history when he wiped out half of all life from existence. to please the living embodiment of death. However, despite his incredible kill count, one story from a Thanos-starring anthology decided to flip the Mad Titan’s most evil feat.